*::after, *::before {
  box-sizing: border-box;
}

*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
  background: #091921;
  position: relative;
}

body::before {
  content: '';
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(#e91e63, #ffc107);
  clip-path: circle(20% at 30% 20%);
}

body::after {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(#FFF, #da00ff );
  clip-path: circle(20% at 70% 90%);
}

.container{
  position: relative;
  background: rgba(255,255,255,.05);
  border-radius: 6px;
  overflow: hidden;
  z-index: 10;
  backdrop-filter: blur(15px);
  border-top: 1px solid rgba(255,255,255,.2);
  border-left: 1px solid rgba(255,255,255,.2);
  box-shadow: 5px 5px 30px rgba(0,0,0,.2);
}

.container .calculator{
  position: relative;
  display: grid;
}

.container .calculator .value{
  grid-column: span 4;
  height: 140px;
  width: 300px;
  text-align: right;
  border: none;
  outline: none;
  padding: 10px;
  font-size: 30px;
  background: transparent;
  color: #FFF;
  border-bottom: 1px solid rgba(255,255,255, .05);
  border-right: 1px solid rgba(255,255,255, .05);
}

.container .calculator span{
  display: grid;
  place-items: center;
  width: 75px;
  height: 75px;
  color: #FFF;
  font-weight: 400;
  cursor: pointer;
  font-size: 20px;
  user-select: none;
  border-bottom: 1px solid rgba(255,255,255, .05);
  border-right: 1px solid rgba(255,255,255, .05);
  transition: .5s;
}

.container .calculator span:hover {
  transition: 0s;
  background: rgba(255,255,255,.05);
}

.container .calculator span:active {
  background: #14ff47;
  color: #192f00;
  font-size: 24px;
  font-weight: 500;
}

.container .calculator .clear{
  grid-column: span 2;
  width: 150px;
  background: rgba(255,255,255,.05);
}

.container .calculator .plus{
  grid-row: span 2;
  height: 150px;
}

.container .calculator .equal{
  background: rgba(255,255,255,.05);
}